公开(公告)号：US06715432B2

公开(公告)日：2004-04-06

申请号：US10101795

申请日：2002-03-19

Applicant: Toshikazu Tsumura ,  Hirofumi Okazaki ,  Miki Shimogori ,  Kenji Kiyama ,  Kouji Kuramashi ,  Hitoshi Kikuchi ,  Yoshitaka Takahashi ,  Shigeki Morita ,  Kazuhito Sakai ,  Masayuki Taniguchi ,  Hironobu Kobayashi

Inventor： Toshikazu Tsumura ,  Hirofumi Okazaki ,  Miki Shimogori ,  Kenji Kiyama ,  Kouji Kuramashi ,  Hitoshi Kikuchi ,  Yoshitaka Takahashi ,  Shigeki Morita ,  Kazuhito Sakai ,  Masayuki Taniguchi ,  Hironobu Kobayashi

IPC: F23D100

CPC classification number: F23C6/045 ,  F23C5/32 ,  F23C7/004 ,  F23C7/008 ,  F23C2201/101 ,  F23D1/00 ,  F23D2201/20 ,  F23D2208/10 ,  F23D2209/20 ,  F23L15/00 ,  Y02E20/348

Abstract: According to a burner of the present invention, a stable combustion is obtained in a wide range from a high-load operation condition to a low-load operation condition even in the case of low quality solid fuel such as brown coal. The amount of air supplied from additional air holes or additional air nozzles 12 can be adjusted depending on the combustion load of furnace 41. At a low load, the amount of air supplied from additional air holes or additional air nozzles 12 is increased, whereby the oxygen concentration in a recirculation zones 19 formed downstream of the outside of a fuel nozzle 11 exit, permits a stable combustion. At a high load, the amount of air supplied from additional air holes or additional air nozzles 12 is reduced, whereby a flame is formed in a position far from the fuel nozzle 11. This suppresses thermal radiation onto a solid fuel burner 42 structure and a furnace 41 wall. The solid fuel burner 42 is applicable to combustion using low-quality solid fuel such as brown coal and exhaust gas as the carrier gas.

Abstract translation: 根据本发明的燃烧器，即使在低质量的固体燃料（例如褐煤）的情况下，也能从高负载运行状态到低负载运行状态的宽范围内获得稳定的燃烧。空气量 可以根据炉41的燃烧负荷来调节从附加的空气孔供给的附加的空气喷嘴12或附加的空气喷嘴12.在低负载下，从附加的空气孔或附加的空气喷嘴12供应的空气量增加， 形成在燃料喷嘴11外侧的下游的再循环区域19可以稳定地燃烧。 在高负载下，从附加空气孔或附加空气喷嘴12供应的空气量减少，从而在远离燃料喷嘴11的位置形成火焰。这抑制了对固体燃料燃烧器42结构的热辐射和 炉41墙。 固体燃料燃烧器42适用于使用诸如褐煤和废气的低质量固体燃料作为载气的燃烧。

公开(公告)号：US06604474B2

公开(公告)日：2003-08-12

申请号：US09852913

申请日：2001-05-11

Applicant: Vladimir Zamansky ,  Vitali Victor Lissianski ,  Peter Martin Maly ,  Yuri Mikhailovloh Mospan

Inventor： Vladimir Zamansky ,  Vitali Victor Lissianski ,  Peter Martin Maly ,  Yuri Mikhailovloh Mospan

IPC: F23B700

CPC classification number: F23K1/04 ,  F23C6/047 ,  F23C9/003 ,  F23C2201/101 ,  F23C2202/20 ,  F23D1/00 ,  F23L9/04

Abstract: This invention discloses the synergistic integration of solid fuel combustion, low NOx control technologies (such as Low NOx Burners, reburning and Advanced Reburning) with partial in-duct gasification of coal or other solid fuels. For partial gasification, the solid fuel can be transported and injected by recycled flue gas stream at 600-800° F. in the reburning zone or in the upper section of the main combustion zone of a boiler. This allows the fuel to be preheated and partially pyrolyzed and gasified in the duct and then injected into the boiler as a mixture of coal, gaseous products, and char. Gasification increases coal reactivity and results in lower carbon-in-ash levels. As an option, the gaseous and solid products can be split using a cyclone separator. Splitting the gasified fuel stream will allow the volatile matter to be used for reburning and the fixed carbon to be injected into the high-temperature main combustion zone.

Abstract translation: 本发明公开了固体燃料燃烧，低NOx控制技术（如低NOx燃烧器，再燃烧和高级再燃烧）与煤或其他固体燃料的局部管内气化的协同一体化。 对于部分气化，固体燃料可以在再燃烧区域或锅炉主燃烧区上部的600-800°F的再循环烟气流输送和注入。 这允许燃料在管道中被预热和部分热解并气化，然后以煤，气体产物和焦炭的混合物注入锅炉。 气化提高煤的反应性，并导致较低的灰分含量。 作为选择，气体和固体产品可以使用旋风分离器分离。 分解气化燃料流将允许挥发性物质用于再燃烧，并将固体碳注入高温主燃烧区。

公开(公告)号：US20030099913A1

公开(公告)日：2003-05-29

申请号：US10194574

申请日：2002-07-11

Inventor： Hisashi Kobayashi ,  Lawrence E. Bool III ,  Kuang Tsai Wu

IPC: F23M003/02 ,  F23C005/00

CPC classification number: F23C5/32 ,  F23C6/045 ,  F23C6/047 ,  F23C7/004 ,  F23C2201/101 ,  F23C2201/20 ,  F23C2900/06041 ,  F23C2900/99004 ,  F23D1/00 ,  F23D14/24 ,  F23D2900/00006 ,  F23D2900/01001 ,  F23L7/007 ,  F23L2900/07006 ,  F23L2900/07007 ,  F23N2037/08 ,  F23N2037/28 ,  Y02E20/344

Abstract: A furnace that combusts fuel, such as coal, of a given minimum energy content to obtain a stated minimum amount of energy per unit of time is enabled to combust fuel having a lower energy content, while still obtaining at least the stated minimum energy generation rate, by replacing a small amount of the combustion air fed to the furnace by oxygen. The replacement of oxygen for combustion air also provides reduction in the generation of NOx.

Abstract translation: 燃烧具有给定的最小能量含量的燃料（例如煤）以获得每单位时间内规定的最小能量的炉子能够燃烧具有较低能量含量的燃料，同时仍然获得至少所述的最小能量产生率 通过用氧代替少​​量供给炉的燃烧空气。 用于燃烧空气的氧气的替换也降低了NOx的产生。

公开(公告)号：US20030099912A1

公开(公告)日：2003-05-29

申请号：US10194497

申请日：2002-07-11

Inventor： Hisashi Kobayashi ,  Kuang Tsai Wu ,  Lawrence E. Bool III

IPC: F23M003/02 ,  F23C005/00

CPC classification number: F23D1/00 ,  F23C5/32 ,  F23C6/045 ,  F23C6/047 ,  F23C7/004 ,  F23C2201/101 ,  F23C2201/20 ,  F23C2900/06041 ,  F23C2900/99004 ,  F23D14/24 ,  F23D17/007 ,  F23D2900/00006 ,  F23D2900/01001 ,  F23J15/003 ,  F23L7/007 ,  F23L9/04 ,  F23L2900/07006 ,  F23L2900/07007 ,  F23N2037/08 ,  F23N2037/28 ,  Y02E20/344

Abstract: NOx emissions from combustion are reduced, NOx reduction efficiency by SNCR is improved, and other efficiencies are realized, by injecting oxygen into a fuel-rich combustion zone under controlled conditions.

Abstract translation: 通过在受控条件下将氧气注入富含燃料的燃烧区域，燃烧中的NOx排放降低，通过SNCR提高NOx还原效率，并实现其他效率。

公开(公告)号：US20020059995A1

公开(公告)日：2002-05-23

申请号：US09835734

申请日：2001-04-16

Inventor： Kent K. Sandquist ,  Anders Kullendorff

IPC: D21C011/12 ,  D21C011/14

CPC classification number: F23L7/007 ,  D21C11/125 ,  F23C2201/101 ,  F23G7/04 ,  F23L7/00 ,  F23L9/00 ,  F23L2900/07005 ,  Y02E20/344

Abstract: The invention refers to a method for black liquor gasification in recovery boilers, of the type having a lower portion, referred to as a lower furnace and an upper portion, referred to as an upper furnace, black liquor sprayers for introduction of black liquor provided in the boiler above the lower furnace, and a number of combustion air levels, whereby the invention incorporates adding oxygen enriched air to the combustion air or directly into the lower furnace at at least one air level underneath the liquor sprayers for the purpose of creating the best possible reducing conditions in the lower furnace, redistributing from the lower furnace combustion air not needed therein following said addition of oxygen enriched air, thereby significantly reducing upward gas velocity underneath the black liquor sprayers, and introducing said redistributed combustion air in the upper furnace, thereby creating the reducing conditions and a controlled temperature in the lower furnace for emission control.

Abstract translation: 本发明涉及一种回收锅炉中黑液气化的方法，该方法具有下部称为下部炉的下部，称为上部炉的上部，用于引入黑液的黑液喷雾器 锅炉在较低的炉子上方以及多个燃烧空气水平，由此本发明包括在燃烧空气中添加富氧空气或者在酒精喷雾器下方的至少一个空气水平处直接进入下炉，以创造最佳的 在下一炉中可能的还原条件，在加入富氧空气之后，从其中不需要的低炉燃烧空气重新分配，从而显着减少黑液喷雾器下方的向上气体速度，并将上述重新分配的燃烧空气引入上炉 在下炉中产生还原条件和控制温度，用于排放 拖车

公开(公告)号：US06338304B2

公开(公告)日：2002-01-15

申请号：US09376353

申请日：1999-08-18

Applicant: Kenji Yamamoto ,  Hironobu Kobayashi ,  Hirofumi Okazaki ,  Toshikazu Tsumura ,  Kenji Kiyama

Inventor： Kenji Yamamoto ,  Hironobu Kobayashi ,  Hirofumi Okazaki ,  Toshikazu Tsumura ,  Kenji Kiyama

IPC: F23C110

CPC classification number: F23C5/00 ,  F22B31/00 ,  F23C6/047 ,  F23C7/008 ,  F23C7/02 ,  F23C2201/101 ,  F28F19/00 ,  Y02E20/328

Abstract: A boiler has a combustion chamber formed by front and rear walls and a side wall extending between the front and rear walls. Plural stages of burners are placed on at least one of the front and rear walls. In the front and rear walls are opposing gas jets for making a pressure of the gas near the side wall within the combustion chamber higher than the pressure of the gas at a center portion of the combustion chamber. The gas jet ports are disposed at a height within a range of the height of the burner stages. The burner stages supply the pulverized coal, the air for transferring the pulverized coal and the air for burning. A part of the air for transferring the pulverized coal or the air for burning is supplied in a branched manner to the gas jet port and injected into the combustion chamber. Further, the air is preferably injected from the gas jet ports in a direct gas flow, not a swirling flow.

Abstract translation: 锅炉具有由前壁和后壁形成的燃烧室和在前壁和后壁之间延伸的侧壁。 燃烧器的多级放置在前壁和后壁中的至少一个上。 前壁和后壁是相对的气体射流，用于使燃烧室内侧壁附近的气体压力高于燃烧室中心部分处的气体压力。 气体喷射口设置在燃烧器级的高度范围内的高度。 燃烧器阶段供应粉煤，用于转移粉煤的空气和用于燃烧的空气。 将用于转移粉煤或燃烧空气的空气的一部分以分支方式供给到气体喷射口并喷射到燃烧室中。 此外，空气优选地从气体喷射口以直接气流而不是涡流喷射。

公开(公告)号：US06237513B1

公开(公告)日：2001-05-29

申请号：US09217104

申请日：1998-12-21

Applicant: Rebecca L. Tobiasz ,  Douglas J. Hart ,  Robert D. Lewis ,  James P. Sutton ,  Bruce F. Griffith

Inventor： Rebecca L. Tobiasz ,  Douglas J. Hart ,  Robert D. Lewis ,  James P. Sutton ,  Bruce F. Griffith

IPC: F23M304

CPC classification number: F23C5/32 ,  F23C7/02 ,  F23C9/00 ,  F23C2201/101

Abstract: A method of operating a solid fuel-fired furnace having a plurality of windboxes each having a plurality of compartments through which fuel and air are introduced into the furnace and a fuel and air arrangement operated in accordance with the method are provided. Solid fuel is fed into the furnace and primary air and fuel are fed through the same compartments into the furnace in a direction tangential to a first imaginary circle generally located in the center of the furnace so as to interact with the fuel fed into the furnace so as to create a rotating fireball. Overfire air and offset air are also supplied into the furnace, the offset air being that portion of the air supplied to the furnace so as to support a second imaginary circle concentric to, and having a larger diameter than, the first imaginary circle. The total air supplied into the furnace is thus composed of primary air, additional combustion supporting air, overfire air, and offset air supplied in accordance with a prescribed relationship between the components of the supplied air.

Abstract translation: 一种操作具有多个风箱的固体燃料燃烧炉的方法，每个风箱具有多个室，燃料和空气通过该多个隔室引入炉中，并且提供根据该方法操作的燃料和空气布置。 固体燃料进料到炉中，一次空气和燃料通过与通常位于炉中心的第一假想圆相切的方向通过相同的隔室进入炉中，以便与进料到炉中的燃料相互作用 为了创造一个旋转的火球。 过热空气和补偿空气也被供应到炉中，偏移空气是供应到炉的空气的一部分，以便支撑与第一假想圆同心并且具有比第一假想圆更大的直径的第二假想圆。 因此，供应到炉中的总空气由一次空气，附加的燃烧支持空气，过火空气以及根据所供给的空气的组分之间的规定关系供应的偏移空气构成。

公开(公告)号：US06192811B1

公开(公告)日：2001-02-27

申请号：US09504226

申请日：2000-02-15

Applicant: Joel Vatsky

Inventor： Joel Vatsky

IPC: F23B700

CPC classification number: F23M9/02 ,  F23C2201/101 ,  F23L9/00

Abstract: An air nozzle for introducing secondary air into a furnace and including a housing provided with an inlet at one end thereof for receiving air and an outlet at the other end thereof for discharging the air. A damper is disposed in the housing in the path of the air for splitting the flow of the air into two flow streams which extend to different areas of the furnace and is adapted for pivotal movement in the housing to vary the amount of air flow in each of the streams and the discharge angle of one of the streams.

Abstract translation: 一种空气喷嘴，用于将二次空气引入炉中，并且包括在其一端设有用于接收空气的入口和在其另一端具有用于排出空气的出口的壳体。 在空气通道中的空气通道中设置有阻尼器，用于将空气流分解成两个流向熔池的不同区域的流动，并适于在壳体中枢转运动以改变每个气流中的空气流量 的流和其中一个流的排放角度。

公开(公告)号：US6148743A

公开(公告)日：2000-11-21

申请号：US641021

申请日：1996-04-29

Applicant: Joel Vatsky

Inventor： Joel Vatsky

IPC: F23L9/00 ,  F23M9/02 ,  B05B1/26 ,  B05B15/08 ,  F23L13/00

CPC classification number: F23M9/02 ,  F23L9/00 ,  F23C2201/101

Abstract: An air nozzle for introducing secondary air into a furnace and including a housing provided with an inlet at one end thereof for receiving air and an outlet at the other end thereof for discharging the air. A damper is disposed in the housing in the path of the air for splitting the flow of the air into two flow streams which extend to different areas of the furnace and is adapted for pivotal movement in the housing to vary the amount of air flow in each of the streams and the discharge angle of one of the streams.

Abstract translation: 一种空气喷嘴，用于将二次空气引入炉中，并且包括在其一端设有用于接收空气的入口和在其另一端具有用于排出空气的出口的壳体。 在空气通道中的空气通道中设置有阻尼器，用于将空气流分解成两个流向熔池的不同区域的流动，并适于在壳体中枢转运动以改变每个气流中的空气流量 的流和其中一个流的排放角度。

公开(公告)号：US6006683A

公开(公告)日：1999-12-28

申请号：US017890

申请日：1998-02-03

Applicant: Kauko Janka ,  Matti Ylitalo ,  Tuomo Ruohola

Inventor： Kauko Janka ,  Matti Ylitalo ,  Tuomo Ruohola

IPC: F23G7/04 ,  F23L9/02 ,  F23B7/00

CPC classification number: F23L9/02 ,  F23G7/04 ,  F23C2201/101

Abstract: A method and an arrangement for supplying air to a recovery boiler. In the method, the air is supplied to the recovery boiler at at least one air supply level so that four vortices are formed therein, the vortices spinning, in pairs, in opposite directions to one another so that any two adjacent vortices always spin in opposite directions to one another. The arrangement comprises nozzles that are arranged to blow air so that four vortices are formed in the recovery boiler, any two adjacent vortices always spinning in opposite directions to one another.

Abstract translation: 一种用于向回收锅炉供应空气的方法和装置。 在该方法中，空气以至少一个空气供应水平供应到回收锅炉，从而在其中形成四个涡流，涡流成对地以相反方向彼此旋转，使得任何两个相邻涡流总是以相反的方向旋转 相互指引。 该装置包括布置成吹送空气的喷嘴，使得在回收锅炉中形成四个涡流，任何两个相邻的涡流总是沿彼此相反的方向旋转。